1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4e4d5e9aeb9732117e0f6e18aec4caf06383652b94a54201c22d99f13650ff7. Chain 2 (Bitcoin): anchored in block 953616 (2026-06-14T08:58:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/18dbadf7-5b30-471f-bb87-c795c00aaeb0.json and https://artists.proofprofile.net/proofs/artist/18dbadf7-5b30-471f-bb87-c795c00aaeb0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1807aa40790e260c98c38bd755b0a21d507ab27ba5a709505bd023bbf6dd2c9c. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDBB0600293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75cec66a1201db077f994d6c8238492a04e1bccf177220f56a1cb2a1f6309e40. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDBB0600294.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bab591b40fb26d45907872bc4c939ad447a94397ff5c3bbc1f5decc016aac3b. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDBB0600302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d951c17ca518d7a8c0cccaf610c085429051f0371532fdfb37a550e508120c6. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDBB0600303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bac9a57b95807836caa1b58147ecfe2ab94a9b6c1d5d4467d2ac0c18c585013. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDBB0600304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e43334709a82387b6b9019b4f11e3e9adcdab746ad87ad2c85ff6471e6926f3. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDBB0600305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x302d6e2c0e2922ed6d5f220e4a7fe9846c2660c179340a3b1394c35a494e3cc9. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDBB0610539.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e5a0bba397af3f1219e90a0e9e5db208a50e276c50aa05c1194b84a8b2b13b1. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDBB0992490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa65d92c60119b5bed92c93817e8756a049204e449993bf96074c7817dd38a5f7. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDBB0992493.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8963556d30faffa7c2372b4c5b9bc6cb53cf0397f37736a184ec6a7b2619ac3. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDBB0608148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54a33bb3c6fe2afc0516d56db8691f7ae75b4366ab3ec1ee75c8ce96901b5865. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDBB0604771.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71a88071f9c8466d1b368caf7b17e967d60ca07628a4ff09a068eb4b0c49be3. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDBB0607159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861d77187c30f62b09250bae9c333259951b0e6af6c1dad926be4b3a75634bbb. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDBB0606298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d17363dae9c4c428e8bd9c9fb2fe9e6a5dffe068037b4b2c8348b6960b56df5. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDBB0608551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd5912acd6d37746c9d7a374490645851ece60d0763388d95dbb43b1337fcfee. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDBB0608601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20c9443e42a4c93b3b9cb51c4cb975e1cfce39a7b0a4719dfd9d685f54f5b666. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDBB0606100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb808ac1141551faa14830c75967a8ef0fb721ccda24a172f79ed44802d7dfbd1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDBB0607778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe37f2cea42e2de6f21815e47115829330431da192a7d01ddd4e7fc79447de82. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDBB0611326.
The Return Of Héctor Rivera Y Su Orquesta... Y Vuelve
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x374800db70fc5aa104cf4321572e92662b51a808a2096447ca703eb907f2f338. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US78T0506688.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0989c22ad7b351414dd65286a040529ebcdcb3dc120640ec3cf199aa08fbcd02. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US78T0506689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca77111a1e3da67174c5362493390b15e629e38ebd90ab1a3011c7c30d10f83. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US78T0506693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44db364de3611887b7aa81d2d0f40c259feb2886ef9b3b1a25381cf072704873. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US78T0506695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9159ca6a2b60155bf7bbbf1ca78944692aa1abb3993a1dfbd87909952f7c0ff. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US78T0506697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276050484ce20ab0154758b477114a9f435b9562a8bfec16ff5828a64643ccd1. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDBB0606092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb56face053e4f70173cc1bd806ffc2bfd3dd6305cdb81c11782717c21131e4f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDBB0604526.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6876c25b9aa3cc73bed7eadebf66b636b4ad86bb9f36b2e6151905d59741814c. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDBB0607912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71a88071f9c8466d1b368caf7b17e967d60ca07628a4ff09a068eb4b0c49be3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDBB0607159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f1b24c21c8756497e4402cf09a1ccee36bcae5798901962729467453c9616ab. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDBB0607413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d57e3714b2e030bb7783bf368131a98b39d599d0cbadac9c207de5305f430db. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USDBB0601600.